ISDA

Deposition Date 2019-09-06

Release Date 2020-01-15

Last Version Date 2025-04-09

Entry Detail

PDB ID:

6SSD

Keywords:

TRANSFERASE

Title:

Transaminase with PLP bound

Biological Source:

Source Organism:

Streptomyces kaniharaensis (Taxon ID: 212423)

Host Organism:

Escherichia coli BL21

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.18 Å

R-Value Free:

0.12

R-Value Work:

0.11

R-Value Observed:

0.11

Space Group:

P 43 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:ForI-PLP
Chain IDs:A
Chain Length:424
Number of Molecules:1
Biological Source:Streptomyces kaniharaensis

UniProt ID:A0A6I8WFW1 Pfam ID:PF00202

Ligand Molecules

PLP

SO4

Primary Citation

PMP-diketopiperazine adducts form at the active site of a PLP dependent enzyme involved in formycin biosynthesis.

Gao, S, Liu, H, de Crecy-Lagard, V, Zhu, W, Richards, N.G.J, Naismith, J.H.Show

Chem.Commun.(Camb.) 55 14502 14505 (2019)

PMID: 31730149 DOI: 10.1039/c9cc06975e

Abstact

ForI is a PLP-dependent enzyme from the biosynthetic pathway of the C-nucleoside antibiotic formycin. Cycloserine is thought to inhibit PLP-dependent enzymes by irreversibly forming a PMP-isoxazole. We now report that ForI forms novel PMP-diketopiperazine derivatives following incubation with both d and l cycloserine. This unexpected result suggests chemical diversity in the chemistry of cycloserine inhibition.

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Primary Citation of related structures